FWIW, you’re correct; you haven’t finished Act 2, and you actually got the bad ending.
Honestly such a great game, I really appreciate that a deus ex machina like that is an option and will just end the game; it fits in quite nicely with how D&D itself works
FWIW, one of the lead developers of Dragon Age Inquisition confirmed that a lot of decisions around that game were EA wanting them to make Skyrim (for instance, the addition of mounts) Source: https://youtu.be/4Q5_RsII_Ho?si=a9CTmyHpEpgfuPTe